Home / 1,225.14-1,837.78-403.50

Finding the Fourth Proportional to 1,225.14, 1,837.78 and 403.50

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Solution

The fourth proportional to 1,225.14, 1,837.78 and 403.50 is: 605.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225.14 : 1,837.78 = 403.50 : x
  2. Step 2: Convert to fraction form
    1,225.14/1,837.78 = 403.50/x
  3. Step 3: Cross multiply
    1,225.14x = 1,837.78 × 403.50
  4. Step 4: Simplify right side
    1,225.14x = 741,544.23
  5. Step 5: Solve for x
    x = 741,544.23/1,225.14
  6. Step 6: Final answer
    x = 605.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.